Question # 1

The direction of angular velocity is determined.

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Left hands rule

Head to tail rule

Right hand rule

General rule

The magnifying power of a convex lens of focal lendth 10 cm is

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7

9.6

11

3.5

10 waves pass through a point in 2 seconds with speed 10 ms-1 the frequency of wave will be

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1 Hz

2 Hz

5 Hz

10 Hz

A 2 meter of high tank is full of water. If a hole appears at its middle, then the speed of efflux is.

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4.4 ms-1

10 ms-1

6.2 ms-1

20 ms-1

The product of cross sectional area of a pipe and speed of fluid along the pipe is

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Zero

Maximum

Constant

Variable

The value of a time period of allow flying satellite is

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1 year

84 minutes

28 hours

1 day

The diameter of a lens is called

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Focal length

Aperture

Principle axis

Centre

A body of mass 2 kg moving with velocity of 4 ms-1 has K.E. equal to.

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16 J

8 J

32 J

2 J

Blood has density equal to that of

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Mercury

Sodium

Honey

Water

The maximum range of projectile is 100 km, Take 9=10 ms-2, the initial velocity of the projectile will be.

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1000 kms-1

1 kms-1

10 kms-1

100 kms-1

The speed of sound in air does not depend upon

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Temperature

Pressure

Density

Medium

the velocity of sound at 0 ^oC is 332 ms-1, the velocity of sound at 10 ^oC will be

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337.1 ms-1

338.1 ,ms-1

342.1 ms-1

328.1 ms-1

The increase in thermal pollution of environment means.

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Increase in the entropy

Decrease in the entropy

Entropy remains constant

Entropy becomes zero

The work done in gravitational field

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Depend upon the path

Does not depend upon the path

(+)ve

Zero

For angular momentum of system to remain constant, external torque should be.

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Small

Large

Zero

None

The value of solar constant.

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1.4 kW m-2

1.0 kW m-2

1.6 kW m-2

2 kw m-2

Crests and trough are formed in.

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Longitudinal waves

transverse waves

Stationary waves

Compression waves

the locus of all pint in the same wave of vibration is called.

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Wave front

Diffraction

Interference

Polarization

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11th Class Part 1 Physics Test Online MCQs With Answers

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